Question

6. Реши уравнения.
7×x =120 + 370
а - 750 = 900 - 850
950 :b = 120 - 115​

Answer 1

1)
7*х=120+370
7х=490 /:7
х=70
2)
а-750=900-850
а-750=50
а=50+750
а=800
3)
950:b=120-115
950:b=5
5b=950 /5
b=190

Answer 2

$1)7 \times x = 120 + 370 \\ 7x = 490 \\ x = 490 \div 7 \\ x = 70 \\ 2)a - 750 = 900 - 850 \\ a - 750 = 50 \\ a = 50 + 750 \\ a = 800 \\ 3)950÷b=120-115 \\ 950 \div b = 5 \\ b = 950 \div 5 \\ b = 190$